Book Maths Puzzle Numerical Ability

three boxes should be filled with odd numbers between 1 to 19 and the sum should be 30.we should use only adddition.

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Book Other Question

find the next number in this series
1,3,10,32,100,?
Q:- The number of values of r satisfying the equation 39C3r-1 -39Cr^2=39Cr^2 -1 -39C3r is
a)1
b)2
c)3
d)4